In this circles worksheet, students view a set of circles of different sizes. The worksheet is only for reference and does not have associated activities.

This site has many useful formulas and examples relating to circles, including related definitions, circumference of a circle, area of a circle, length of a circular arc, area of a circular sector, equation of a circle in cartesian...

A map of five Venn diagram circles showing the relationships between characters in The Tragedy of Julius Caesar and their roles in the play.

A printable Venn Diagram with three circles to use when comparing and contrasting three things or topics. Directions on how to use this graphic organizer as well as lists of teaching ideas and related resources are also provided.

Explains how resources, goods and services, and payments flow through the economy using the economic model of circular flow.

This lesson will present how if two segments from the same point outside a circle are tangent to a circle, then they are congruent. It is 3 of 5 in the series titled "Two Lines Tangent to a Circle."

This lesson presents the standard form and the general form for the equation of a circle, and relates the two. It is 3 of 5 in the series titled "Equations for the Circle."

A diagram and explanation of the circular flow of money.

A printable Venn diagram to use when comparing and contrasting two things or topics. Directions on how to use this graphic organizer as well as lists of teaching ideas and related resources are also provided.

This lesson will demonstrate how to find the area and radius of a circle when given the sector area and central angle measure. It is 4 of 8 in the series titled "Sector Area of a Circle."

This lesson explains how triangles and parallelograms can be used to estimate the area of a circle. It is 4 of 4 in the series titled "Estimating the Area of a Circle."

This lesson will define the term sector. It is 2 of 10 in the series titled "Sector of a Circle."

This site from the University of Saint Andrews shows the involute of a circle graphically and gives brief history. Cartesian equation is given.

This site provides definitions for different parts of a circle, pictures to more clearly represent formulas involving circles. Some of the formulas discussed include: area of a circle, area of a sector of a cirles, circumference, length...

This basic website will give you lots of information about circles. There are also some questions to test your circle knowledge.

circle

This site provides definitions for different parts of a circle, pictures to more clearly represent formulas involving circles. Some of the formulas discussed include: area of a circle, area of a sector of a cirles, circumference, length...

The site consists of four large groups of stone circles that represent an extraordinary concentration of over 1,000 monuments in a band 100 km wide along some 350 km of the River Gambia. The four groups, Sine Ngayene, Wanar, Wassu and...

WebMath offers a java applet that allows you to input information about a circle, in one of four forms, and gies you the graph of the circle.

All that remains of this bowl is the base, decorated with a small circle surrounded by a larger circle. The underside bears the signature of the artist, Ghozail.

Students will be able to use The Method of Exhaustion and find the area of a circle by illustrating graphically.

This site introduces the iteration of circle inversions and describes the associated properties.

This site introduces the iteration of circle inversions and describes the associated properties.

Practice finding the lowest term name for a variety of different fractions using circles.